April 7 - 11, 2025
Seattle, Washington
Symposium Supporters
2025 MRS Spring Meeting & Exhibit
EN07.12.01

High-Energy All-Solid-State Li–S Batteries

When and Where

Apr 11, 2025
8:30am - 9:00am
Summit, Level 3, Room 328

Presenter(s)

Co-Author(s)

Donghai Wang1

Southern Methodist University1

Abstract

Donghai Wang1

Southern Methodist University1
Li–S all-solid-state batteries (ASSBs) are emerging as promising candidates for next-generation energy storage systems, owing to their high theoretical energy densities, improved safety, and potential cost-effectiveness. The solid-state design eliminates the detrimental polysulfide dissolution, providing improved cycling stability compared to liquid-based systems. However, achieving high sulfur utilization in sulfur cathode under realistic conditions remains a critical challenge. This is primarily caused by the intrinsic insulating nature of sulfur, sluggish reaction kinetics, and limited ionic and electronic transport at the solid-solid triple-phase interfaces. In this talk, we will present our recent research findings and strategies developed to advance high-energy Li–S ASSBs. Specifically, we will cover our fundamental studies of sulfur conversion reaction limitation using a quantitative spectroscopic-electrochemical methodology and characterization of interfaces in sulfur cathodes through multiscale imaging techniques. Additionally, we will discuss our design of advanced solid electrolytes and cathode interface engineering approaches to promote sulfur utilization, improve overall battery performance, and pave the way for practical applications in energy storage and electric vehicles.

Keywords

chemical synthesis | interface

Symposium Organizers

Brian Sheldon, Brown University
Yoon Seok Jung, Yonsei University
Hongli Zhu, Northeastern University
Hui Wang, University of Louisville

Symposium Support

Silver
BioLogic USA

Session Chairs

Donghai Wang
Hui Wang

In this Session